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http://dx.doi.org/10.5370/KIEE.2013.62.9.1302

Failure Rate Estimation of MOV for Condition Monitoring of Surge Protective Devices  

Kim, Dong Jin (Dept. of Electronics and Electrical Engineering, Dankook University)
Kim, Young Sun (Dept. of Electrical and Electronic Engineering, Joongbu University)
Park, Jae Jun (Dept. of Electrical and Electronic Engineering, Joongbu University)
Lee, Ki Sik (Dept. of Electronics and Electrical Engineering, Dankook University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.62, no.9, 2013 , pp. 1302-1307 More about this Journal
Abstract
MOV(Metal Oxide Varistor) is the most important part of SPD(Surge Protective Device) which can protect electric facilities from an impulse current such as a lightning. So far, the fault of MOVs have decided only by surge count without considering magnitude of surge current and an amount of input energy. This paper proposed the fault prediction algorithm for the MOV using look up table made by surge count and input current data which have non-linear characteristics for input current and are estimated by high voltage experimental results. Proposed algorithm was proved by experiment on verification at a high voltage laboratory.
Keywords
Surge protection device; MOV; failure rate; Non-linear characteristics; Lightning;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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